Finding the Third Proportional to 2,128,878 and 3,184,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,878 : 3,184,501.50 = 3,184,501.50 : x
2. Step 2: Convert to fraction form
   2,128,878/3,184,501.50 = 3,184,501.50/x
3. Step 3: Cross multiply
   2,128,878x = 3,184,501.50 × 3,184,501.50
4. Step 4: Simplify right side
   2,128,878x = 10,141,049,803,502.25
5. Step 5: Solve for x
   x = 10,141,049,803,502.25/2,128,878
6. Step 6: Final answer
   x = 4,763,565.50